How can i overcome depression

Bible often picture temptation and struggle with sin as a battlefield, it is fighting against temptation and if you want to succeed in the battle, you need to prepare well.
Ready for the battle. (Eph 6:11, 13-17)
Watch and pray. (Mk 14:38)
Remember Jesus used word of God to attack and overcome all three temptations in the wilderness. We are no better, so spend time in the word of God. Immerse yourself into word of God, study it, memorize it. Remember, you may not have your bible with you when Satan confronts you with some kind of temptation!”